February 27, 2017 6:54 pm NBC10 Investigators: Secret Police Technology Placed on Trial NBC10 Investigator Mitch Blacher dug into a case on a controversial police surveillance device called “cell site simulators.” The technology is used to spy on and track cell phones. US & World Videos 1:30 Protests calling for ceasefire continue at Penn 6:33 Family affair: Former Eagle and new Eagle Jeremiah Trotter and Jeremiah Trotter Jr. speak out 0:20 Teen girl shot in Southwest Philly, suspect in custody 0:27 FBI inspects American Airlines plane at PHL after bomb threat 1:40 Penn officials urging pro-Palestinian protesters to pack up and leave campus